Valve-lieteb



J. KISTER.

VALVE LIFTER.

A P P L l C A T l 0 N F l L E D M A Y 4 l 9 2 0.

,357,097. Patented Oct. 26, 1920.

Winn W I fittmnup "canto c a (Ia/zP/Ifister UNITED STATES JAKE "nrsrnn, or HASTINGS, NEBRASKA.

VALVE-LIFTER.

Specification of Letters Patent.

Patented Oct. 26, 1920.

Application filed May 4, 1920. Serial No. 378,776.

To all whom it may concern.-

Be it known that I, JAKE KIsTER, a citizen of the United States, residing at Hastings, in the county of Adams and State of Nebraska, have invented a new and useful Valve-Lifter, of which the following is a specification.

This invention relates to valve lifters for use in removing the valves from explosive engines, one of the objects of the device being to provide a tool which can be adjusted easilyto the valves and which, after adjustment, can, with one movement produce a quick contraction of the valve spring thus to permit the parts readily to be disconnected.

Another object is to provide a tool of this character which is simple and'durable in construction and can be operated readily.

I WVith the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that, within the scope of what is claimed, changes in the precise embodiment of the invention shown can be made without departing from the spirit of the invention.

In the accompanying drawings the preferred form of the invention has been shown.

In said drawings- Figure l is a view partly in elevation and partly in section through a tool embodylng the present improvements.

Fig. 2 is a section on line 22, Fig. 1.

Fig. 3 is a section on line 3-3, Fig. 1.

Referring to the figures by characters of reference 1 designates a yoke one end of which is forked, as shown at 2 so as to straddle the valve stem while theother end, which is in line with the fork, is provided with a guide sleeve 3 having a rectangular passage 4: therethrough. A retainlng flange 5 is provided at the lower end of the sleeve while the upper end is engaged by a cap 6.

Slidably mounted within the passage 4 is a block 7 the upper end of which constitutes a cam face 8. Threaded through this block is an elongated stem 9 having an adjusting wheel 10 at one end while its other end is adapted to engage the valve, not shown.

Mounted for rotation in the sleeve 3 and loosely mounted on the stem 9 is a shifting block 11 having a cam face 12 which normally engages the cam face 8. A tubular extension 13 projects from this block and through the cap 6 and has secured to it a handle 14.

In using the device herein described the forked tool is placed on the valve stem under the valve spring and the threaded stem 9 is adjusted through the block 7 by means of the wheel 10 until it comes against the valve. By then giving one turn with the handle 14 the cam face 12, riding on the cam face 8, will shift the block 7 longitudi nally within the sleeve 3, carrying the stem 9 with it and placing the spring on the valve stem under compression so that the parts can readily be disconnected.

WVhat is claimed is:

1. A device of the class described includ ing a yoke, a guide sleeve at one end thereof, stem engaging means at the other end, a block slidably mounted in the sleeve and held against rotation therein, a block revoluble within the sleeve, a threaded stem loosely mounted in the revoluble block and engaging the slidable block, said blocks having cooperating cam faces for shifting the slidable block longitudinally with the stem when the revoluble block is actuated.

2. The combination with a yoke having a guide sleeve at one end and valve stem engaging means at its other end, of a slidable block within the sleeve, revoluble means for shifting the block, and a threaded stem adjustably mounted within and movable with the block.

3. The combination with a yoke having valve stem engaging means at one end and a sleeve at its other end, of a slidable block within the sleeve and held against rotation, a threaded stem adjustably mounted within and movable with the block, said stem projecting through the sleeve, and revoluble means Within the sleeve for shifting the block and stern longituchnally, said stem being extended loosely through said means.

4. The combination with a yoke having valve stem engaging means at one end and a guide sleeve at its other end, ofa block slidablejwithin and held'against rotation in the sleeve; said stemextending through and engaging the block, a revolulole loloe'ki'vithi'n the sleeve, said. stem extending loosel'y through the revoluble block, a handle engaging the revoluble block, said blocks having cooperating cam faces.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two Witnesses.

' JAKE'KISTER.

Witnesses:

C. G. LANE,

J. M. DAVIS. 

